Telescopic lawn sprinkler



Oct'. 21, 1952 H SHlELDS 2,614,887

TELESCOP-IC LAWN SPRINKLER Filed Nov. 6, 1950 `Patented Oct. 21, 1952 UNITED STATES PATENT OFFICE 2,614,887 `'IELESCOPIC LAWN SPRINKLER Garry H. Shields, Portland, Oreg.

Application November 6, 1950, Serial No. 194,319

z claims. (c1. `a99- 104i This invention relates generally to sprinklers and particularly to a telescopic lawn sprinkler.

The main obfect of this invention is to construct a lightweight, inexpensive, portable sprinkler, which can be readily extended from six to twenty-four feet in length, and made to sprinkle from two to twenty feet wide, depending upon the pressureof the water delivered to the sprinkler.

'I'he second object is to provide a unique form of Joint whereby the joint is automatically held to a seating position when the joined parts are fully extended.

These and other objects are accomplished in the manner set forth in the following specifications as illustrated in the accompanying drawings, in which Fig. 1 is a plan of the sprinkler in an extended position.

Fig. 2 is a plan of the sprinkler in a contracted position with portions broken away to disclose the innermost tube.

Fig. 3 is a fragmentary section taken along the line 3-3 in Fig. 1.

Fig. 4 is a fragmentary section taken along the line I4 in Fig. 2. showing the last joint and tip end of the sprinkler.

Fig. 5 is an end view of the sprinkler showing the direction of the sprays formed thereby.

Like numbers of reference refer to the same or similar parts throughout the several views.

Referring in detail to the drawing, there is shown a series of telescopic tubes I0, II, I2 and I3, which are preferably made of a light weight aluminum alloy.

The tube I has one end rolled to form a bell end flange Il within which is a rubber packing ring I and threaded hose coupling I6.

Into the tube I0 extends one end I1 of the tube Ii. VThe innermost ends I1 of the tubes II, I2 and I3 are all constructed as shown in Fig. 3. Each innermost end II is rolled out to form a double seat I8 and I9. After the end I'I is inserted in the next larger tube II), II or I2, the outer tube is rolled to form the groove which seats against the seat I9 when the sections are fully extended.

The extreme end of the outermost section I0, II or I2 is also rolled in to form the bead 2l which cooperates with the outwardly rolled seats 22 on the outer end of the next smaller tube within to form a-seat when two tubes I0 and Il. or II and I2, or I2 and I3 are telescoped as far as possible. That is, each tube I0, II, I2 and I3 has a double seat I8 and I9 at its .end and has the groove 20 and 2l on opposite sides of the seat 22.

Between each seat 22 and groove 2| is mounted a base 23 which holds the tubing off of the ground and holds all of the sections in a fixed position with relation to the ground 24.

Small holes 25-A are formed in the tubes lil-I3, inclusive, through which the water can spray as indicated by the lines 25. A cap 2B holds the tubing in place on its base and is held in place by the screws 2l.

All of the sections are alike except for diameter and that the last section I3 is fitted with a plug 28 and a slidable plastic sleeve 29 whosetapered end 30 can be pushed into the space between the outside of the tube I3 and the outer end 3| of the tube I2.

It can be seen that by this construction, the tubes are perfectly sealed in either an extended or a telescoped position.

I claim:

1. A lawn sprinkler consisting of a plurality of telescopically arranged tubes, each tube having a base upon which it rests and adapted to hold it against rotation, all of said tubes having perforations on the upper portion thereof, each adjacent pair of tubes having seals at the end thereof to prevent the escape of water through the joints in the innermost and outermost positions, and a seal on the end of the outermost tube consisting of a plastic ring slidably mounted on said tube having a tapering end adapted to wedge into the space between the outermost tube and the next outermost tube.

2. A sprinkler consisting of a plurality of telescopic tubular members having sealing stops between each pair of members at their innermost inlet end and a double seat 22 near its outlet and outermost positions of travel, each tubular member having a series of sprinkler holes along one side thereof, bases secured to each section at its outer end in a manner to hold the perforated portions of the tubes uppermost, a lug in the outermost end of the central tube and a conical sleeve slidably mounted on the innermost tube.

GARRY H. SHIELDS.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS vNumber Name Date 1,068,872 Eichhoff July 29, 1913 1,370,252 Williams Mar. 1, 1921 2,100,186 Hagopian Nov. 23, 1937 

